On-Vehicle Data Management Device with Travel State Association
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Solution Overview
Problem
Existing on-vehicle data management systems are inefficient in searching and extracting data from multiple apparatuses, relying solely on position and time information, which limits the analysis of vehicle travel states.
Innovation Solution
An on-vehicle data management device that collects data from various apparatuses and stores it in association with vehicle travel information, allowing for efficient data retrieval using travel-related information as a search key, without requiring updates to existing apparatuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If data is stored with only position and time information, then storage simplicity is maintained, but data search and extraction efficiency deteriorates
Solution Approach 1:
The system performs preliminary association of data with vehicle travel state information (acceleration, deceleration, steering angle) at the time of data acquisition. This preliminary action enables efficient later retrieval without requiring complex real-time analysis, resolving the contradiction between storage simplicity and search efficiency.
Solution Approach 2:
The invention introduces vehicle travel state information as an intermediary element that bridges the gap between simple storage and efficient search. By associating data with travel state characteristics (acceleration, deceleration, steering), the system enables targeted retrieval without complicating the fundamental storage structure.
2Adaptability or versatility
If existing apparatuses are updated to obtain and associate travel information, then data analysis capability is improved, but system complexity and update requirements increase
Solution Approach 1:
The vehicle travel state information is obtained from existing apparatuses that already generate this data for other purposes (acceleration sensors for safety systems, steering angle sensors for driver assistance). By reusing this existing multi-functional data, the system improves data analysis capability without requiring additional apparatuses or updates.
Solution Approach 2:
The existing apparatuses continue to perform their original functions while simultaneously providing travel state information for data association. The system leverages the self-generated data from existing components, eliminating the need for apparatus updates while enhancing analytical capabilities.
3Adaptability or versatility
If more data is collected and stored, then data utilization value is improved, but storage space consumption increases
Solution Approach 1:
Instead of uniformly storing all possible data with equal detail, the system applies local quality by selectively associating data with specific travel state characteristics based on the data type and analysis needs. This enables efficient storage by maintaining high utilization value for critical data while reducing storage overhead for less critical information.
Data Source
AI summary
This on-vehicle data management device includes: a data collection section configured to collect data that is obtained by a first apparatus of a vehicle and that is recorded in a record region provided in the first apparatus; an information obtaining section configured to obtain information related to travel of the vehicle from a second apparatus of the vehicle, the second apparatus being different from the first apparatus; and a storage processing section configured to store target data collected by the data collection section in association with the information related to travel of the vehicle obtained by the information obtaining section.